D1. Knowledge and understanding
The objective of the course is to introduce the main hydrodynamic phenomena specific to naval architecture. Besides, the fundamentals of the theoretical tools useful for modelling the discussed phenomena will be provided, also describing the corresponding typical engineering approaches commonly used in naval architecture practice. Course topics will be addressed making reference to analytical approaches, calculation methods, and experimental approaches. Multidisciplinary aspects of the subject will also be highlighted.

D2. Applying knowledge and understanding
The student will acquire the necessary background to develop a rational approach to the modelling of hydrodynamic phenomena specific to naval architecture. The student will be able to apply the knowledge acquired during the course in the framework of specific courses aimed at a deeper analysis of the discussed topics.

D3. Making judgements
The student will be able to analyse typical hydrodynamic phenomena of naval architecture, and will be able to choose the most appropriate approach for the modelling of the considered problem.

D4. Communication skills
The student will be able to discuss, clearly and competently, on the fundamental hydrodynamic aspects typical of naval architecture.

D5. Learning skills
The student will acquire an approach to the topics of the course which promotes the autonomous search of information through existing technical and scientific literature.

Suggested basic knowledge of calculus and of fundamentals of physics.

1. Marine vehicles and working environment
2. Modelling of incompressible fluids for typical problems of naval architecture
3. Hydrostatic, floatability and fundamentals of ship stability
4. Resistance of submerged bodies and flat plates
5. Resistance of surface vehicles
6. Loads in offshore environment
7. Hydrodynamic fundamentals of ship propulsion and manoeuvring systems
8. Typical experimental tests in naval architecture
9. Notes on numerical approaches for naval architecture
10. Additional topics

1. L. Birk, “Fundamentals of Ship Hydrodynamics: Fluid Mechanics, Ship Resistance and Propulsion”, Wiley, 2019
2. J. Carlton, “Marine Propellers and Propulsion (2nd Edition)”, Butterworth-Heinemann (Elsevier), 2007
3. G. Contento, “Appunti del Corso di Architettura Navale I (Idrodinamica)”, A.A. 2002-2003
4. The Principles of Naval Architecture, SNAME, 1988
5. The Principles of Naval Architecture Series: “Ship Resistance & Flow” by Lars Larsson & Hoyte C. Raven, Edited by J. Randolph Paulling, 2010.
6. L. Zovatto, “Fondamenti di Idrodinamica Navale - Appunti”, (most recent version)

Specific additional bibliographic references will be indicated during the lectures.

1. Marine vehicles and working environment
Classification of marine vehicles. Typical environmental forces. Induced motions.

2. Modelling of incompressible fluids for typical problems of naval architecture
Navier-Stokes equations. Euler equations. Potential flows. Steady and unsteady Bernoulli theorem.

3. Hydrostatic, floatability and fundamentals of ship stability
Hydrostatic loads on fixed bodies. Floatability. Initial stability of marine vehicles.

4. Resistance of submerged bodies and flat plates
Resistance of a submerged body with forward speed and/or in presence of current. Resistance of flat plates. Friction lines used in naval architecture.

5. Resistance of surface vehicles
Viscous resistance. Wave resistance. Air resistance.

6. Loads in offshore environment
Modelling of linear waves. The concept of irregular waves. Characterization of sea states. The concept of wave energy spectrum. Loads on slender bodies and Morison method. Wind loads.

7. Hydrodynamic fundamentals of ship propulsion and manoeuvring systems
Lift and drag of hydrofoils. Propeller. Rudder.

8. Typical experimental tests in naval architecture
Dimensional analysis and Buckingham theorem. Towing tank test. Open-water propeller test. Seakeeping tests. Manoeuvring tests.

9. Notes on numerical approaches for naval architecture.
Potential solvers. Viscous solvers.

10. Additional topics
Wind-assisted propulsion. Hydrodynamic working principles of anti-rolling fin stabilizers. Dynamic positioning. Underwater vehicles.

The course is organized in frontal lectures and seminars linked with theory and application aspects.

The final examination is of written type, and it deals with the topics addressed during the course. The exam is based on numerical/analytical exercises and/or open questions. The final mark is expressed in /30, and it is obtained by averaging the marks obtained for each single proposed problem, taking into account, when necessary, the different characteristics of each single problem.

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